SerpiMastic provides an ultra-durable, weather, UV and chemical-resistant protective coating that provides high impact protection for asbestos, cement asbestos board and thermal/insulations on boilers and pipes, and other substrates that demand a ultra-durable mastic coating.

Available in two viscosity grades, sprayable and trowelable, SerpiMastic is UL classified as a bridging encapsulant for use with classified sprayed fiber and cementitious mixtures.